*2026/01/16 09:47:05.96 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/20 20:50:50.000 END TIME : UTC 2023/12/20 20:51:15.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 127 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.97 2 Depth metres 0.15 37.85 3 Temperature 'deg C (ITS90)' 8.961 10.74 4 Conductivity S/m 1.61726 3.44505 5 Conductance:Specific S/m 2.38104 4.81989 6 Salinity PSS-78 14.06 30.66 7 Speed:Sound m/s 1460.45 1487.83 8 Density kg/m^3 1010.78 1023.61 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 114 LATITUDE : 50 34.41490 N ! (deg min) LONGITUDE : 127 30.98960 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231220_205050 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 127 127 MERGEHDR 1.3 2026/01/15 13:41:49 127 127 HDREDIT2 3.2 2026/01/15 14:00:58 ? ? REMOVECH 8.2 2026/01/15 14:01:18 127 127 CALIB 12.1 2026/01/16 09:46:12 127 127 CLEAN 5.3 2026/01/16 09:47:05 127 127 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:58 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:12 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 09:47:01 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 8.961 1.61726 2.38104 14.06 1460.45 1010.780 0.45 0.45 9.079 1.81033 2.65608 15.85 1463.09 1012.157 0.75 0.76 9.190 1.89049 2.76468 16.56 1464.40 1012.701 1.05 1.06 9.316 2.15506 3.13998 19.04 1467.90 1014.616 1.35 1.36 9.383 2.25919 3.28531 20.01 1469.34 1015.364 1.65 1.66 9.458 2.44348 3.54562 21.76 1471.76 1016.718 1.95 1.96 9.567 2.59262 3.75012 23.15 1473.86 1017.787 2.25 2.26 9.677 2.67338 3.85472 23.87 1475.16 1018.334 2.55 2.56 9.749 2.71800 3.91094 24.26 1475.90 1018.629 2.85 2.86 9.810 2.73459 3.92792 24.38 1476.28 1018.716 3.15 3.16 9.860 2.76730 3.96921 24.67 1476.82 1018.933 3.45 3.46 9.934 2.83677 4.06016 25.30 1477.87 1019.414 3.75 3.76 10.022 2.92391 4.17434 26.09 1479.16 1020.020 4.05 4.06 10.152 3.08790 4.39225 27.61 1481.48 1021.185 4.35 4.36 10.309 3.19930 4.53043 28.59 1483.24 1021.924 4.65 4.66 10.375 3.21478 4.54379 28.69 1483.61 1021.993 4.95 4.96 10.413 3.22736 4.55677 28.79 1483.86 1022.062 5.25 5.26 10.440 3.24416 4.57694 28.93 1484.14 1022.171 5.55 5.56 10.459 3.25491 4.58969 29.02 1484.32 1022.240 5.85 5.86 10.480 3.25892 4.59256 29.04 1484.43 1022.255 6.15 6.15 10.488 3.26201 4.59597 29.07 1484.49 1022.274 6.45 6.45 10.492 3.26269 4.59643 29.07 1484.52 1022.278 6.75 6.75 10.495 3.26701 4.60209 29.11 1484.58 1022.310 7.05 7.05 10.500 3.27112 4.60717 29.15 1484.65 1022.338 7.35 7.35 10.504 3.27776 4.61600 29.21 1484.74 1022.387 7.65 7.65 10.510 3.27996 4.61837 29.23 1484.79 1022.401 7.95 7.95 10.515 3.29047 4.63246 29.33 1484.93 1022.479 8.25 8.25 10.522 3.29649 4.64010 29.38 1485.03 1022.521 8.55 8.55 10.532 3.29845 4.64158 29.39 1485.08 1022.530 8.85 8.85 10.538 3.29987 4.64268 29.40 1485.12 1022.536 9.15 9.15 10.546 3.30337 4.64657 29.43 1485.19 1022.558 9.45 9.44 10.562 3.31438 4.66006 29.52 1485.36 1022.632 9.75 9.74 10.571 3.32460 4.67319 29.62 1485.51 1022.704 10.05 10.04 10.582 3.32986 4.67917 29.66 1485.61 1022.737 10.35 10.34 10.587 3.34030 4.69318 29.76 1485.75 1022.815 10.65 10.64 10.597 3.34816 4.70285 29.83 1485.88 1022.868 10.95 10.94 10.602 3.35103 4.70622 29.85 1485.93 1022.887 11.25 11.24 10.611 3.35162 4.70590 29.85 1485.96 1022.886 11.55 11.54 10.619 3.35808 4.71389 29.91 1486.07 1022.931 11.85 11.84 10.629 3.36178 4.71771 29.94 1486.14 1022.952 12.15 12.13 10.636 3.36666 4.72363 29.98 1486.22 1022.985 12.45 12.43 10.640 3.37055 4.72857 30.01 1486.29 1023.013 12.75 12.73 10.646 3.37278 4.73101 30.03 1486.33 1023.027 13.05 13.03 10.651 3.37292 4.73050 30.03 1486.35 1023.025 13.35 13.33 10.651 3.37478 4.73314 30.05 1486.38 1023.041 13.65 13.63 10.651 3.37579 4.73443 30.06 1486.40 1023.049 13.95 13.93 10.653 3.37717 4.73618 30.07 1486.42 1023.060 14.25 14.23 10.653 3.37907 4.73878 30.09 1486.45 1023.076 14.55 14.53 10.656 3.38368 4.74488 30.13 1486.52 1023.110 14.85 14.82 10.661 3.38836 4.75083 30.17 1486.59 1023.143 15.15 15.12 10.664 3.39107 4.75416 30.19 1486.63 1023.163 15.45 15.42 10.666 3.39221 4.75557 30.20 1486.66 1023.172 15.75 15.72 10.664 3.39241 4.75606 30.21 1486.66 1023.176 16.05 16.02 10.663 3.39284 4.75676 30.21 1486.67 1023.181 16.35 16.32 10.664 3.39405 4.75832 30.22 1486.69 1023.190 16.65 16.62 10.667 3.39689 4.76191 30.25 1486.74 1023.211 16.95 16.92 10.669 3.39717 4.76202 30.25 1486.75 1023.213 17.25 17.22 10.669 3.39683 4.76157 30.25 1486.75 1023.212 17.55 17.51 10.672 3.39750 4.76219 30.25 1486.77 1023.216 17.85 17.81 10.674 3.39723 4.76144 30.25 1486.78 1023.213 18.15 18.11 10.677 3.39820 4.76246 30.25 1486.80 1023.220 18.45 18.41 10.678 3.39937 4.76391 30.26 1486.82 1023.229 18.75 18.71 10.679 3.39959 4.76416 30.27 1486.83 1023.231 19.05 19.01 10.679 3.40117 4.76638 30.28 1486.85 1023.245 19.35 19.31 10.679 3.40173 4.76719 30.29 1486.87 1023.251 19.65 19.61 10.679 3.40287 4.76875 30.30 1486.88 1023.260 19.95 19.91 10.680 3.40337 4.76936 30.30 1486.90 1023.265 20.25 20.20 10.681 3.40372 4.76967 30.30 1486.91 1023.268 20.55 20.50 10.681 3.40460 4.77087 30.31 1486.93 1023.276 20.85 20.80 10.681 3.40497 4.77134 30.32 1486.94 1023.279 21.15 21.10 10.682 3.40507 4.77135 30.32 1486.94 1023.281 21.45 21.40 10.683 3.40483 4.77092 30.31 1486.95 1023.280 21.75 21.70 10.686 3.40570 4.77181 30.32 1486.97 1023.286 22.05 22.00 10.686 3.40650 4.77284 30.33 1486.99 1023.292 22.35 22.30 10.687 3.40811 4.77499 30.34 1487.01 1023.305 22.65 22.59 10.689 3.40823 4.77493 30.34 1487.02 1023.306 22.95 22.89 10.692 3.40931 4.77605 30.35 1487.05 1023.313 23.25 23.19 10.693 3.41052 4.77761 30.36 1487.07 1023.323 23.55 23.49 10.693 3.41077 4.77791 30.36 1487.08 1023.326 23.85 23.79 10.694 3.41159 4.77890 30.37 1487.10 1023.333 24.15 24.09 10.695 3.41267 4.78030 30.38 1487.12 1023.341 24.45 24.39 10.696 3.41397 4.78207 30.39 1487.14 1023.352 24.75 24.69 10.696 3.41521 4.78372 30.40 1487.16 1023.363 25.05 24.98 10.696 3.41648 4.78551 30.42 1487.18 1023.374 25.35 25.28 10.697 3.41853 4.78819 30.43 1487.21 1023.390 25.65 25.58 10.698 3.42086 4.79144 30.46 1487.24 1023.409 25.95 25.88 10.698 3.42225 4.79327 30.47 1487.27 1023.420 26.25 26.18 10.699 3.42299 4.79427 30.48 1487.28 1023.427 26.55 26.48 10.699 3.42306 4.79435 30.48 1487.29 1023.428 26.85 26.78 10.698 3.42312 4.79449 30.48 1487.29 1023.430 27.15 27.08 10.697 3.42312 4.79468 30.48 1487.29 1023.433 27.45 27.38 10.697 3.42362 4.79541 30.48 1487.30 1023.438 27.75 27.67 10.697 3.42407 4.79602 30.49 1487.31 1023.443 28.05 27.97 10.698 3.42449 4.79650 30.49 1487.33 1023.447 28.35 28.27 10.699 3.42542 4.79758 30.50 1487.35 1023.454 28.65 28.57 10.701 3.42620 4.79841 30.51 1487.36 1023.459 28.95 28.87 10.702 3.42926 4.80263 30.53 1487.41 1023.484 29.25 29.17 10.702 3.42937 4.80276 30.54 1487.41 1023.486 29.55 29.47 10.703 3.42974 4.80313 30.54 1487.43 1023.489 29.85 29.77 10.705 3.43029 4.80364 30.54 1487.44 1023.493 30.15 30.06 10.706 3.43145 4.80515 30.55 1487.46 1023.502 30.45 30.36 10.706 3.43295 4.80721 30.57 1487.49 1023.515 30.75 30.66 10.709 3.43386 4.80815 30.57 1487.51 1023.521 31.05 30.96 10.712 3.43559 4.81013 30.59 1487.54 1023.533 31.35 31.26 10.714 3.43591 4.81036 30.59 1487.55 1023.535 31.65 31.56 10.714 3.43733 4.81224 30.60 1487.58 1023.547 31.95 31.86 10.718 3.43821 4.81304 30.61 1487.60 1023.552 32.25 32.16 10.720 3.43940 4.81436 30.62 1487.63 1023.560 32.55 32.45 10.725 3.43937 4.81366 30.61 1487.64 1023.557 32.85 32.75 10.729 3.44005 4.81408 30.62 1487.67 1023.561 33.15 33.05 10.730 3.44004 4.81390 30.62 1487.68 1023.561 33.45 33.35 10.734 3.44079 4.81451 30.62 1487.70 1023.565 33.75 33.65 10.734 3.44143 4.81532 30.63 1487.71 1023.571 34.05 33.95 10.733 3.44121 4.81517 30.62 1487.71 1023.571 34.35 34.25 10.733 3.44153 4.81567 30.63 1487.72 1023.576 34.65 34.55 10.732 3.44308 4.81790 30.64 1487.74 1023.589 34.95 34.84 10.733 3.44240 4.81682 30.64 1487.74 1023.584 35.25 35.14 10.734 3.44276 4.81724 30.64 1487.75 1023.588 35.55 35.44 10.731 3.44308 4.81806 30.64 1487.75 1023.594 35.85 35.74 10.729 3.44301 4.81817 30.64 1487.75 1023.596 36.15 36.04 10.729 3.44329 4.81864 30.65 1487.76 1023.600 36.45 36.34 10.730 3.44366 4.81904 30.65 1487.77 1023.603 36.75 36.64 10.733 3.44458 4.81989 30.66 1487.79 1023.609 37.05 36.94 10.740 3.44428 4.81848 30.65 1487.81 1023.602 37.35 37.23 10.739 3.44505 4.81972 30.66 1487.82 1023.610 37.65 37.53 10.740 3.44455 4.81890 30.65 1487.83 1023.607 37.97 37.85 10.740 3.44481 4.81931 30.65 1487.83 1023.610